Oven-wall structure



P. PLANTINGA.

OVEN WALL STRUCTURE.

APPLICATION man MAY|.1920.

Patented sept.. 26, 1922*.

rasata seat, ae, rena.

atraen f 'Ii FLANTING, O'JE CLEVELAND, GEO.

@WN-WALL STRUCTURE.

Application led may l, 1920. Serial No. 378,284.

To all whom it ma/ z/ concern:

"Be it known that l, PIERRE PLANTINGA, a citizen of the United States, resident of Cleveland, county of Cuyahoga, and State of 0hio, have invented new and useful llmprovements in Oven-Wall Structures, 'of which the following is a specification, the principle of the invention beinglherein explained -and the best mode in w ich l have contemplated applying that principle, so as to distinguish it from other inventions.

My invention relates to oven wall structures, and particularly to a new and improved construction of the jambs thereof. rllhe object of the invention is to design a jamb structure in which high-temperatureresistingelements may be utilized for the interior, combined with oven wall face elements which will not spall when the cold air strikes them, together with the features which will overcome the diculty heretofore experienced'because of Kthe separation under great heat' at the joint between the hightemperature-resisting elements and the nonspalling elements. f.

The annexed drawing land the following description set forth in detail certain means embodying my invention, the disclosed means, however, constituting but one of the various mechanlcal formslin which the principle of my invention may be applied. ln said annexed drawing: Figure 1 represents a v'fragmentary plan section of a coke oven embodying my new y and improved jamb construction;

Figure 2 represents a vertical longitudinal section taken in the plane indicated by the line ll-ll, Figure 1.

Figure 3 represents, upon an enlarged scale, a fragmentary plan section of one of 1 the dues shown in Figure 1 and taken in the p plane indicated by lines lll-HI, Figure t;

Figure a represents` a longitudinal, vertical section taken in the plane indicated by the line lV--U Figure 3; y

Figure 5 represents a fragmentary plan section taken iny the plane'indicatedby the line V-V, Figure 4;

Figure 6 represents a fragmentary, transverse, vertical sectiontakenin the plane indicated by the line Vl-VL Figure .3;

Fi re 7 represents a view similar to that of Figure 6, but illustrating the several positions assumed by the j amb bricks when the oven wall has expanded;

Figure 8 represents a vertical, longitudinal section similar to Figure 2, showing the condition obtaining under thepresent Jamb construction when the wall has expanded, which it is the purpose of my invention to obviate; and

t Figures 9 and 10 represent front perspective and-rear perspective views of a special )amb facing brick entering into my construction.

Referring to the annexed drawing, a pair of oven walls are indicated by the ordinal 1,

"forming between them the usual coking chamber 2, having a jamb face 3, the other end of the coke oven, not shown, being of the same construction as the end shown. The ordinal 4 indicates a customary cast iron plate covering the oven face andA intended for the protection of the jamb. Access to the coking chamber 2 is obtained through the medium of the usual door 5. These oven walls 1 are formed of silica bricks interlocked in the manner plainly shown in Figure 5. Transverse anchoring bricks suitably distributed are indicated by the ordinal 6. ln the resent construction of oven walls, the jamb is formed of fire clay because it is impossible to utilize silica the entireA distance to the opening or jamb of the oven, inasmuch as it will spall when the cold air strikes it.

However, great difliculty is experienced at the joint between the silica walls and the clay jambs because the silica expands considerably 'when'the oven is brought up to working temperature, i such -expansion amounting to from to fig of an inch per foot, which totals in an oven of the standard ten foot'height, from one to two inches of expansion. rlhe ordinary clay' materials, on the other hand, expand very slightly. vThe result is a tendency to tilt the clay jamb, break the bond bet-Ween the bricks. opening up cracks through which gas or air can pass, and distorting the support for the roof 14. Thiscondition is plainly indicated in Figure 8,A wherein it will be noted that there is an increasing differentiation from bottom to top between the alignment of the jambv facing, 8' and the several silica bricks, 1', 12, 13, 14, etc., to the rear thereof, until at the top the. accumulated expansion has resulted in a considerable opening 16, resulting `in the deleterious e'ects hereinbefore mentioned. ln my improved jamb. I have formedthe same of a vsilica material central portion and clay material facings. This is plainly be noted, also, that the silica bricks 7 forming the central portion of thevjamb are of two sizes, are of greater cross section in one plane than in a transverse plane, 'and are alternately arranged so as to present lirst the broad side of a brick 7 and then the narrow end of a brick 7 The same size bricks might be used for both courses by arranging them with the broad sides to the front and the narrow sides to the front alternately. The clay facing bricks 8 are of a length equal to two courses'o'cl silica bricks, the upper portion 9 thereof lying adjacent a silica brick which is presented broad side to the face of the oven, and the lower portion 10, of comparatively increased cross section, Figures 9 and 10, lying adjacent a silica brick presenting a narrow end to the face of the oven, such enlarged portion 10 of the clay brick lying intermediate two of the aforementioned broad side silica bricks. This detailed arrangement of the several silica bricks 7 and 7 and the clay brick portions 9 and 10 is one way of interlocking the silica and clay so that there is no opportunit for anLr accumulated expansion of the w ole wall, but such expansion must express 'itself in'small amounts between the several bricks., ln other words, inasmuch as the clay bricksS are only twocourses high, about ten inches, each jointy will open up not to exceed 13g of an inch. This is illustrated by ordinal 13, Figure 7. The clay facing bricks are formed with co-operating tongues 11 and rooves 12, whereby they are severally interocked. As plainly indicated in Figure 7, these tongues and grooves take care of the slight expansion of the joint between the several silica and clay bricks. It is not necessary to care `for this expansion by such special means as these tongues and grooves, but the same are beneficial in this respect. The several joint openings of of an inch each or so would also carbon up, thus taking care of these openings without the necessity of the special tongues and grooves. As plainly indicated in Figure 5, the clay facing bricks 8 are interlocked with the front silica bricks of the walls 1, and the several silica bricks of the walls 6 are also interlocked with tongues and grooves.

' What li claim is:

1.. A j amb construction for oven walls consisting of hi h-temperature-resisting elements interloied with ceramic elements which are non-spalling when subjected to cold air.

2. A jamb construction for oven walls consitting of high-temperature-resisting elements forming the central body portion thereof and ceramic elements which are nonspalling when subjected to cold air forming the side body portions thereof.

3. A jamb construction for oven walls consisting of silica material forming the central body portion thereof and clay material forming the facings.

4. A jamb construction for oven walls consisting of silica bricks forming,the cen tral body portion thereof and clay bricks interlocked with said silica bricks and forming the facings.

5. An oven comprising a' pair of front walls of silica and forming between them a coking chamber, combined with jambs formed of silica except that the facings of the front walls forming the sides of the jambs are formed of clay material.

6. An oven comprising a pair of front walls of silica and forming between them a coking chamber, combined with jambs formed of interlocked silica and claybricks, of which the facings of the front walls forming the sides of the jambs -are clay bricks. I

7. A jamb construction for oven walls consisting of silica bricks forming' the centrali body portion thereof and clay bricks forming the facings of the fronts of the adjacent oven walls, 'the silica bricks being greater in cross-section in one plane than in a transverse plane and laid with alternate bricks on edge, and the clay bricks having extensions or enlargements respectively disposed adjacent alternate silica bricks and intermediate the silica bricks above and below said alternate bricks.

8. An oven comprising a pair of front walls of silica and forming between them a coking chamber, combined with jambs formed of interlocked silica and clay bricks, of which the facings of the front walls forming the sides of the jambs are clay bricks, the adjacent surfaces of said facing bricks being respectively formed with interlocking tongues and grooves.

Signed by me, this 28th day of March, 1920.

PXERRE PLANTINGA. 

